Do Re MiC D E

Detour Ahead

Herb Ellis / Johnny Frigo / Lou Carter(1948)4/4swing

Chord Diagrams — Detour Ahead in B (Guitar)

Display
FingerNoteDegree
Starting fret
Open123456789101112
BMaj7
4frEADGBE111xx4
EADGBE111324
7frEADGBE111423
9frEADGBE11333x
E9♯11
3frEADGBE3142
EADGBE12
6frEADGBE11x234
11frEADGBE111234
Cdim
3frEADGBEx1243x
EADGBEx41x23
6frEADGBE31x42x
10frEADGBExx12x3
C♯m7
4frEADGBE111x32
5frEADGBExx2314
9frEADGBE111114
11frEADGBExx1423
D♯m7
6frEADGBE111132
EADGBExx1423
7frEADGBExx2314
11frEADGBE111114
EMaj7
7frEADGBE111324
EADGBE312
EADGBE333xx1
4frEADGBE111x43
F♯13
7frEADGBEx4231
EADGBE2314
EADGBE111234
9frEADGBE111134
B7
7frEADGBE111132
EADGBEx2134
EADGBE111134
4frEADGBE111xx2
F♯m7
9frEADGBE111132
EADGBE111113
4frEADGBExx1423
10frEADGBExx2314
G7
10frEADGBE111134
EADGBE321
3frEADGBE111132
5frEADGBE11x324
E6
7frEADGBE3333x1
EADGBE2314
EADGBE11134
5frEADGBEx4231x
B6
7frEADGBE1x324x
EADGBEx312x
EADGBE3333x1
9frEADGBE11xx34
B6/G
7frEADGBE1x324x
EADGBEx312x
EADGBE3333x1
9frEADGBE11xx34
C9
7frEADGBE131214
EADGBE221334
7frEADGBE112344
9frEADGBExx2143
Gm7
8frEADGBE11x234
3frEADGBE111113
5frEADGBE11x423
10frEADGBE111132
F♯7
9frEADGBE111134
EADGBE111132
4frEADGBE11x324
7frEADGBEx3241x
G♯m7
9frEADGBE11x23x
4frEADGBE111113
6frEADGBE11x423
11frEADGBE111132
A♯7
8frEADGBE11x324
EADGBE111x34
6frEADGBE111132
11frEADGBEx3241x
Fm7♭5
8frEADGBEx1324x
EADGBE1x23x
EADGBE222xx1
11frEADGBE2134x
B
7frEADGBE111342
EADGBE111234
4frEADGBE111xx4
9frEADGBE11x243
D♯m
6frEADGBE111342
EADGBExx1342
EADGBExx3241
11frEADGBE111134
E13
7frEADGBE111134
EADGBE213
EADGBE123
5frEADGBE1342
D♯6
6frEADGBE3333x1
EADGBE11xx34
4frEADGBEx4231x
10frEADGBE2x143x
D♯Maj7
6frEADGBE111324
EADGBE11333x
3frEADGBE111x43
8frEADGBE111xx4
Fm7
8frEADGBE111132
EADGBE111113
3frEADGBExx1423
9frEADGBExx2314
E9
9frEADGBE11112
EADGBE213
EADGBE113x42
6frEADGBE221334
E7
9frEADGBE111xx2
EADGBE21
5frEADGBEx3241x
7frEADGBE111134
F♯7sus4
9frEADGBE111134
EADGBE111134
4frEADGBExx1324
7frEADGBE11x234

Explore More

Detour Ahead in B

Key of B

B major mixes barre and open elements. The B chord itself is a barre at fret 2, but E and A are comfortable open chords forming the IV and V. The open B string rings as the root, allowing creative drone-based arrangements. B is a intermediate-level key on guitar because the open B string rings as the root and the open E strings provide the 4th — useful for sus4 voicings and drone effects. This key mixes open and barre shapes, making it a good intermediate challenge that builds fretboard fluency.

Voice Leading

The bass line moves through B to E (ascending perfect fourth), E to C (descending major third), C to C# (ascending half step), C# to D# (ascending whole step), D# to E (ascending half step), E to F# (ascending whole step), F# to B (ascending perfect fourth), B to F# (descending perfect fourth), F# to G (ascending half step), G to E (descending minor third), E to B (descending perfect fourth), B to B (ascending unison), B to C (ascending half step), C to G (descending perfect fourth), G to F# (descending half step), F# to G# (ascending whole step), G# to A# (ascending whole step), A# to F (descending perfect fourth), F to B (ascending tritone), B to D# (ascending major third), D# to E (ascending half step), E to D# (descending half step), D# to D# (ascending unison), D# to F (ascending whole step), F to E (descending half step), E to E (ascending unison), E to F# (ascending whole step). A half-step bass movement creates a strong leading-tone pull that demands resolution. The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from F# to B by perfect fourth.

Scales for Improvisation

B major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, B Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing4/4 · 28 bars · Form: AB

Chords: BMaj7, E9♯11, Cdim, C♯m7, D♯m7, EMaj7, F♯13, B7, F♯m7, G7, E6, B6, B6/G, C9, Gm7, F♯7, G♯m7, A♯7, Fm7♭5, B, D♯m, E13, D♯6, D♯Maj7, Fm7, E9, E7, F♯7sus4.

Scales for Improvisation B bebop, B bebop major.

Diatonic chords: See all chords in the key of B